CN113651254B - Working arm supporting leg connecting module and engineering machinery - Google Patents
Working arm supporting leg connecting module and engineering machinery Download PDFInfo
- Publication number
- CN113651254B CN113651254B CN202110987262.1A CN202110987262A CN113651254B CN 113651254 B CN113651254 B CN 113651254B CN 202110987262 A CN202110987262 A CN 202110987262A CN 113651254 B CN113651254 B CN 113651254B
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- pin hole
- support base
- support
- leg
- oil cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
- B66C23/86—Slewing gear hydraulically actuated
Abstract
The invention discloses a working arm supporting leg connecting module and engineering machinery, wherein the working arm supporting leg connecting module comprises: a support base; the rotary support structure comprises a first rotary part and a second rotary part; a working arm; one end of the first telescopic oil cylinder is hinged with the working arm, and the other end of the first telescopic oil cylinder is hinged with the second rotary part; the support leg structure comprises a first support leg and a second support leg, wherein the first end of the first support leg is hinged with the support base; the two ends of the second telescopic oil cylinder are respectively hinged with the support base and the first supporting leg; the two ends of the third telescopic oil cylinder are respectively hinged with the support base and the second supporting leg; an oil cavity is formed between the first revolving body and the second revolving body; the hydraulic joint is connected with the second telescopic oil cylinder, the third telescopic oil cylinder and the oil cavity; the first connecting part comprises a first pin hole and a first pin shaft of the first baffle plate; the second connecting part comprises a second pin hole and a second pin shaft of which the top end is provided with a second baffle; the third connecting part comprises a third pin hole and a third pin shaft of which the top end is provided with a third baffle.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a working arm supporting leg connecting module and engineering machinery.
Background
At present, engineering machinery equipment gradually plays a larger role in some special operation occasions, such as occasions of tunnel barrier removal, mine roadway repair, earthquake breaking, dismantling and rescue, military mine sweeping and explosion venting and the like. On the basis of the traditional engineering machinery technology, the structure and the optimization performance are recombined, a plurality of special engineering machinery equipment suitable for special working conditions, such as tunnel barrier removing equipment, mine roadway repairing equipment, broken and detached rescue equipment, mine sweeping and explosion venting equipment and the like are generated, and in the special equipment, the structure form of a multifunctional operation arm support is adopted for adapting to the requirements of complex environments and multifunctional operation, and the modularized design technology is utilized to meet the overall special operation requirements.
Disclosure of Invention
The invention aims to provide a working arm supporting leg connecting module which has multiple functions and can be quickly and effectively assembled and disassembled with a frame of engineering machinery.
The first aspect of the present invention discloses a work arm leg connection module for mounting to a frame of a construction machine, comprising:
a support base;
the rotary support structure comprises a first rotary part fixedly connected with the support base and a second rotary part which is arranged above the first rotary part and can rotate relative to the first rotary part;
the working arm comprises a first end hinged with the second rotating part and a second end provided with a connecting working device;
one end of the first telescopic oil cylinder is hinged with the working arm, and the other end of the first telescopic oil cylinder is hinged with the second rotary part and is used for stretching to drive the working arm to rotate relative to the second rotary part;
the support leg structure is used for supporting the support base on the ground and comprises a first support leg and a second support leg, wherein the first end of the first support leg and the first end of the second support leg are hinged with the support base;
the two ends of the second telescopic oil cylinder are respectively hinged with the support base and the first supporting leg and are used for driving the first supporting leg to rotate relative to the support base;
the two ends of the third telescopic oil cylinder are respectively hinged with the support base and the second supporting leg and are used for driving the second supporting leg to rotate relative to the support base;
the hydraulic revolving body comprises a first revolving body fixedly connected with the support base and a second revolving body fixedly connected with the second revolving part, the first revolving body and the second revolving body can rotate relatively and form an oil cavity therebetween, and the oil cavity is connected with the first telescopic oil cylinder for supplying oil to the first telescopic oil cylinder;
the hydraulic joint is fixedly connected with the first rotating part, is connected with the second telescopic oil cylinder, the third telescopic oil cylinder and the oil cavity, and is used for being connected with a joint of a hydraulic pipeline of the engineering machinery so as to supply oil to the second telescopic oil cylinder, the third telescopic oil cylinder and the oil cavity;
the first connecting part is positioned at the left end of the support base and comprises a first pin hole fixedly arranged on the support base and a first pin shaft of a first baffle plate with the diameter larger than that of the first pin hole, and the first pin shaft is used for being matched with the first pin hole and a first connecting pin hole of the frame at the same time;
the second connecting part is positioned at the right end of the support base and comprises a second pin hole fixedly arranged on the support base and a second pin shaft of a second baffle with the diameter larger than that of the second pin hole, and the second pin shaft is used for being matched with the second pin hole and a second connecting pin hole of the frame at the same time;
the third connecting portion is located the bottom of supporting base, including fixed locating third pinhole on the supporting base and top are equipped with the diameter and are greater than the third round pin axle of the third baffle of third pinhole, the third round pin axle be used for simultaneously with the third pinhole with the cooperation of the third connecting pin hole of frame.
In some embodiments, the second revolving body is a cylindrical revolving body sleeved outside the first revolving body, the oil cavity is arranged between the inner surface of the circumferential surface of the second revolving body and the outer surface of the circumferential surface of the first revolving body, and a connecting port for communicating the oil cavity and the first telescopic oil cylinder is arranged on the circumferential surface of the second revolving body.
In some embodiments, the hydraulic control device further comprises a valve group electric box arranged on the second rotating part, the valve group electric box comprises an electric control hydraulic valve used for controlling a hydraulic oil way of the expansion and contraction of the first expansion and contraction oil cylinder, and the support base is further provided with an electric connector used for being connected with a connector of an electric circuit of the engineering machine, and the electric connector is electrically connected with the valve group electric box.
In some embodiments, the valve assembly further comprises a rotary electrical interface, a rotor of the rotary electrical interface is electrically connected with the valve assembly electrical box and fixedly connected with the second rotator, and a stator of the rotary electrical interface is electrically connected with the electrical connector and fixedly connected to the support base.
In some embodiments, the bottom of the third pin shaft is further provided with a first threaded portion, the third connection portion further includes a bottom baffle having a diameter greater than the third connection pin bore, and the bottom baffle includes a second threaded portion for threaded engagement with the first threaded portion.
In some embodiments, the support base comprises a support disc body and an inclined support frame fixedly connected to the bottom of the support disc body, the first connecting portion and the second connecting portion are respectively arranged at the left end and the right end of the support disc body, and the third connecting portion is arranged on the inclined support frame.
The invention discloses engineering machinery, which comprises a frame, a hydraulic pipeline and any one of the working arm supporting leg connecting modules, wherein a first connecting pin hole, a second connecting pin hole and a third connecting pin hole are formed in the frame, a first pin shaft is simultaneously matched with the first pin hole and the first connecting pin hole, a second pin shaft is simultaneously matched with the second pin hole and the second connecting pin hole, a third pin shaft is simultaneously matched with the third pin hole and the third connecting pin hole, and a joint of the hydraulic pipeline is connected with the hydraulic joint.
According to the working arm supporting leg connecting module, the rotary supporting structure, the hydraulic rotary body, the working arm, the supporting leg structure and the like are arranged, when the working arm is installed to engineering machinery to work, the working arm can swing and simultaneously rotate on a rotary plane, engineering operation can be performed with multiple degrees of freedom, and meanwhile, the supporting leg structure can swing and expand flexibly to support, so that the working process is stable and reliable. In addition, through setting up first connecting portion, second connecting portion and the third connecting portion that have round pin axle, pinhole and baffle and form triangle form distribution, can carry out quick reliable dismouting, easy dismounting, reliable operation with the pinhole of engineering machine tool's frame.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic view of a connection module for a leg of a work arm according to an embodiment of the present invention;
FIG. 2 is an exploded view of the work arm leg connection module of FIG. 1;
FIG. 3 is a schematic view of the support base shown in FIG. 1;
FIG. 4 is a schematic view of an exploded structure of the support base shown in FIG. 3;
FIG. 5 is a schematic view of the support plate of the support base of FIG. 4;
FIG. 6 is a schematic view of a diagonal bracing frame of the support base shown in FIG. 4;
FIG. 7 is a schematic diagram illustrating a process of installing a work arm leg connection module and a frame of an engineering machine according to an embodiment of the present invention;
fig. 8 is a schematic structural view of the work arm leg connection module shown in fig. 7 and the frame of the construction machine after installation.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 8, the boom leg connecting module of the present embodiment is for mounting to a frame 100 of a construction machine, and includes a support base 1, a slewing support structure 2, a boom 3, a first telescopic cylinder 71, a leg structure 5, a second telescopic cylinder 72, a third telescopic cylinder 73, a hydraulic slewing body 6, a hydraulic joint, a first connecting portion 81, a second connecting portion 82, and a third connecting portion 83. In the present application, the left and right are referred to an operator along the extending direction of the work arm from the front of the frame 100 when the work arm leg connection module is mounted on the frame 100 of the construction machine and works.
The support base 1 is used for installing a plurality of components such as a rotary support structure 2, a leg structure 5 and the like.
The rotary support structure 2 includes a first rotary part 21 fixedly connected with the support base 1 and a second rotary part 22 provided above the first rotary part 21 and rotatable relative to the first rotary part 21. The swing support structure 2 is for driving the second swing portion 22 to rotate relative to the first swing portion 21 so that the member attached to the second swing portion 22 can follow the rotation, with a degree of freedom of the swing. In some embodiments, the slewing bearing 2 comprises a decelerator and a slewing motor, in other embodiments, the slewing bearing 2 may also comprise a decelerator and a motor.
As shown in fig. 1, the work arm 3 includes a first end hinged to the second swing portion 22 and a second end to which the work implement 4 is attached. The working arm 3 can rotate relative to the second rotating part 22 through the hinging of the first end and the second rotating part 22, so that the working arm 3 can rotate around the first rotating part 21 under the driving of the second rotating part 22 and can rotate relative to the second rotating part 22 through hinging.
As shown in fig. 1 and 2, one end of the first telescopic cylinder 71 is hinged to the working arm 3, the other end of the first telescopic cylinder 71 is hinged to the second turning part 22, and the first telescopic cylinder 71 is used for stretching to drive the working arm 3 to rotate relative to the second turning part 22; in the embodiment shown in the figures, two first telescopic cylinders 71 are included, which are arranged in parallel. In the embodiment shown in the figures, the working arm 3 comprises a large arm and a small arm which are hinged, the small arm is hinged with the working device 4, a small arm oil cylinder 74 is arranged between the large arm and the small arm, and a rotating bucket oil cylinder 75 is arranged between the working device and the small arm.
The support leg structure 5 is used for supporting the support base 1 on the ground, and the support leg structure 5 comprises a first support leg 51 and a second support leg 52, wherein the first ends of the first support leg 51 and the second support leg 52 are hinged with the support base 1; the two ends of the second telescopic oil cylinder 72 are respectively hinged with the support base 1 and the first supporting leg 51 and are used for driving the first supporting leg 51 to rotate relative to the support base 1; the two ends of the third telescopic oil cylinder 73 are hinged with the support base 1 and the second supporting leg 52 respectively, and are used for driving the second supporting leg 52 to rotate relative to the support base 1. The second telescopic cylinder 72 and the third telescopic cylinder 73 can respectively drive the first supporting leg 51 and the second supporting leg 52 to rotate to contact with the ground or lift from the ground to be separated from the ground, so that the supporting leg structure 5 can be switched between the supporting working state and the non-supporting state. The support leg structure 5 is arranged, so that the work arm support leg connecting module can be more stable and reliable in work.
As shown in fig. 1 and 2, the hydraulic pressure revolving unit 6 includes a first revolving unit 61 fixedly connected to the support base 1 and a cylindrical second revolving unit 62 fixedly connected to the second revolving unit 22, the first revolving unit 61 and the second revolving unit 62 being rotatable relative to each other with an oil chamber formed therebetween, the oil chamber being connected to a first telescopic cylinder 71 for supplying oil thereto.
The hydraulic joint is arranged on the support base 1 and fixedly connected with the first rotating part 21, is connected with the second telescopic oil cylinder 72, the third telescopic oil cylinder 73 and the oil cavity, and is used for being connected with a joint of a hydraulic pipeline of the engineering machinery so as to supply oil to the second telescopic oil cylinder 72, the third telescopic oil cylinder 73 and the oil cavity. The hydraulic joint can be conveniently and rapidly connected with a hydraulic pipeline of the engineering machinery, the hydraulic joint arranged on the supporting base 1 is connected with an oil cavity of the hydraulic revolving body 6, so that hydraulic oil can be fed into the oil cavity of the hydraulic revolving body 6 through the hydraulic joint, and is transferred to a hydraulic component positioned on the second revolving part 22 through the hydraulic revolving body 6. In the embodiment shown in fig. 3 and 4, the hydraulic joints include a first hydraulic joint 92 and a second hydraulic joint 93, and the first hydraulic joint 92 and the second hydraulic joint 93 may be provided as male hydraulic joints that are convex and female hydraulic joints that are concave.
As shown in the drawing, the first connection portion 81 is located at the left end of the support base 1, and the first connection portion 81 includes a first pin hole 811 fixedly formed in the support base 1 and a first pin shaft 812 having a first baffle plate 813 having a larger diameter than the first pin hole 811 at the top end, and the first pin shaft 812 is configured to cooperate with the first pin hole 811 and the first connection pin hole 110 of the frame 100 at the same time. The first baffle 813 may be integrally formed with the first pin shaft 812, or may be detachably connected to the first pin shaft 812 by a threaded connection or the like. The first baffle 813 is used to restrict the first pin 812 from falling down the first pin hole 811 when the first pin is inserted into the first pin hole 811. As shown in fig. 8, when the arm leg link module is connected to the frame 100, the first pin shaft 812 is inserted into the first pin hole 811 from above, thereby allowing the first pin hole 811 and the first link pin hole 110 to be connected at the same time in a convenient, quick and reliable manner.
The second connecting portion 82 is located at the right end of the support base 1, and includes a second pin hole 821 fixedly formed in the support base 1 and a second pin shaft 822 provided at the top end with a second baffle 823 having a diameter larger than that of the second pin hole 821, and the second pin shaft 822 is configured to cooperate with the second pin hole 821 and the second connecting pin hole 120 of the frame 100 at the same time. The second baffle 823 may be integrally formed with the second pin 822, or may be detachably connected to the second pin 822 by a threaded connection or the like. The second baffle 823 is used to restrict the second pin 822 from falling down the second pin hole 821 when the second pin 822 is inserted into the second pin hole 821. As shown in fig. 8, when the arm leg link module is connected to the frame 100, the second pin 822 is inserted into the second pin hole 821 from above, thereby allowing the second pin hole 821 and the second link pin hole 120 to be connected at the same time in a convenient and quick manner.
The third connecting portion 83 is located at the bottom end of the support base 1, and the third connecting portion 83 includes a third pin hole 831 fixedly formed in the support base 1 and a third pin shaft 832 having a third baffle 833 with a diameter larger than that of the third pin hole 831 at the top end, where the third pin shaft 832 is configured to cooperate with the third pin hole 831 and the third connecting pin hole 130 of the frame 100 at the same time. The third baffle 833 may be integrally formed with the third pin 832, or may be detachably connected with the third pin 832 by threaded connection or the like. The third baffle 833 is used to limit the third pin 832 from falling down the third pin hole 831 when the third pin 832 is inserted into the third pin hole 831. In this embodiment, the first connection portion 81 and the second connection portion 82 can realize the left-right quick connection between the working arm leg connection module and the frame 100, the third connection portion 83 can realize the connection between the working arm leg connection module and the bottom of the frame 100, and the three connection portions form a triangle shape, so that the reliable connection between the working arm leg connection module and the frame 100 can be realized. Meanwhile, the pin shafts and the baffle plates are arranged, and the quick connection between the working arm support leg connecting module and the frame 100 can be realized, so that the working arm support leg connecting module and the frame 100 can be quickly and reliably disassembled.
The working arm supporting leg connecting module of the embodiment is characterized in that the rotary supporting structure 2, the hydraulic rotary body 6, the working arm 3, the supporting leg structure 5 and the like are arranged, when the working arm is installed to engineering machinery to work, the working arm 3 can swing and simultaneously can rotate on a rotary plane, engineering operation can be performed with multiple degrees of freedom, and meanwhile, the supporting leg structure 5 can swing and expand flexibly to support, so that the working process is stable and reliable. In addition, by providing the first connecting portion 81, the second connecting portion 82, and the third connecting portion 83 with the pin shaft, the pin hole, and the baffle plate, which are distributed in a triangular shape, the frame can be quickly and reliably assembled and disassembled with the pin hole of the frame 100 of the construction machine, and the assembly and disassembly are convenient, and the operation is reliable.
In some embodiments, as shown in fig. 2, the second revolving body 62 is a cylindrical revolving body sleeved outside the first revolving body 61, an oil cavity is provided between the inner surface of the circumferential surface of the second revolving body 62 and the outer surface of the circumferential surface of the first revolving body 61, and a connection port for communicating the oil cavity and the first telescopic cylinder 71 is provided on the circumferential surface of the second revolving body 62. That is, the second rotating body 62 and the first rotating body 61 form a sleeve structure, an annular oil chamber is formed between the second rotating body 62 and the first rotating body 61, and the second rotating body 62 and the first rotating body 61 are slidably sealed. This arrangement can conveniently and reliably realize the hydraulic oil transfer function of the hydraulic gyrorotor 6 between the two parts that relatively rotate.
In some embodiments, the working arm leg connection module further includes a valve block electric box 91 disposed on the second swing portion 22, the valve block electric box 91 includes an electrically controlled hydraulic valve for controlling a hydraulic oil path of extension and retraction of the first extension and retraction cylinder 71, and in the embodiment including the arm cylinder 74 and the bucket cylinder 75 as shown in the drawings, the electrically controlled hydraulic valve includes a hydraulic multi-way valve connected to the first extension and retraction cylinder 71, the arm cylinder 74 and the bucket cylinder 75 simultaneously, and the valve block electric box further includes an electric box connected to the hydraulic multi-way valve, and the electric box can also supply power to some electric elements on the working arm. The support base 1 is further provided with an electrical connector 94 for connection to a connector of an electric circuit of the construction machine, and the electrical connector 94 is electrically connected to the valve block electrical box 91. The hydraulic connector and the electric connector are integrated on the supporting base 1, and the electric connector and the hydraulic connector can be universal connectors.
In some embodiments, the work arm leg connection module further includes a rotary electrical interface, the rotor of which is electrically connected to the valve block electrical box 91 and fixedly connected to the second rotator 62, and the stator of which is electrically connected to the electrical connector 94 and fixedly connected to the support base 1. The rotary electrical interface includes brushes, which enable electrical conduction and transfer of electrical signals between relatively rotating components.
In some embodiments, as shown in fig. 3, the bottom of the third pin 832 is further provided with a first threaded portion, and the third connecting portion 83 further includes a bottom stop 834 having a diameter greater than the third connecting pin bore 130, the bottom stop 834 including a second threaded portion for threaded engagement with the first threaded portion. As shown in the figure, a threaded hole may be disposed at the bottom of the third pin 832, a threaded shaft matched with the threaded hole is disposed on the bottom baffle 834, the bottom baffle 834 is configured to prevent the third pin from being separated from the third connecting pin hole 130 of the frame 100 when the construction machine works, and the third pin 832 can be stably and reliably connected with the third pin hole 831 and the third connecting pin hole 130 under the combined action of the third baffle and the bottom baffle 834.
In some embodiments, as shown in fig. 1 to 8, the support base 1 includes a support disc 11 and a diagonal brace 12 fixedly connected to the bottom of the support disc 11, the first connection portion 81 and the second connection portion 82 are respectively provided at the left end and the right end of the support disc 11, and the third connection portion 83 is provided on the diagonal brace 12. The inclined support frame 12 and the support disc body 11 form a triangle connection, and when the working arm support leg connection module is connected with the frame 100, the working arm support leg connection module can be stably and reliably supported, so that the operation arm support leg connection module is firmer and more reliable.
In some embodiments, as shown in fig. 8, an engineering machine is further disclosed, where the engineering machine includes a frame 100, a hydraulic pipeline, and any of the working arm leg connection modules, a first connection pin hole 110, a second connection pin hole 120, and a third connection pin hole 130 are provided on the frame 100, a first pin 812 is simultaneously matched with the first pin hole 811 and the first connection pin hole 110, a second pin 822 is simultaneously matched with the second pin hole 821 and the second connection pin hole 120, a third pin 832 is simultaneously matched with the third pin hole 831 and the third connection pin hole 130, and a joint of the hydraulic pipeline is connected with a hydraulic joint.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (7)
1. A work arm leg connection module for mounting to a frame of a work machine, comprising:
a support base;
the rotary support structure comprises a first rotary part fixedly connected with the support base and a second rotary part which is arranged above the first rotary part and can rotate relative to the first rotary part;
the working arm comprises a first end hinged with the second rotating part and a second end provided with a connecting working device;
one end of the first telescopic oil cylinder is hinged with the working arm, and the other end of the first telescopic oil cylinder is hinged with the second rotary part and is used for stretching to drive the working arm to rotate relative to the second rotary part;
the support leg structure is used for supporting the support base on the ground and comprises a first support leg and a second support leg, wherein the first end of the first support leg and the first end of the second support leg are hinged with the support base;
the two ends of the second telescopic oil cylinder are respectively hinged with the support base and the first supporting leg and are used for driving the first supporting leg to rotate relative to the support base;
the two ends of the third telescopic oil cylinder are respectively hinged with the support base and the second supporting leg and are used for driving the second supporting leg to rotate relative to the support base;
the hydraulic revolving body comprises a first revolving body fixedly connected with the support base and a second revolving body fixedly connected with the second revolving part, the first revolving body and the second revolving body can rotate relatively and form an oil cavity therebetween, and the oil cavity is connected with the first telescopic oil cylinder for supplying oil to the first telescopic oil cylinder;
the hydraulic joint is fixedly connected with the first rotating part, is connected with the second telescopic oil cylinder, the third telescopic oil cylinder and the oil cavity, and is used for being connected with a joint of a hydraulic pipeline of the engineering machinery so as to supply oil to the second telescopic oil cylinder, the third telescopic oil cylinder and the oil cavity;
the first connecting part is positioned at the left end of the support base and comprises a first pin hole fixedly arranged on the support base and a first pin shaft of a first baffle plate with the diameter larger than that of the first pin hole, and the first pin shaft is used for being matched with the first pin hole and a first connecting pin hole of the frame at the same time;
the second connecting part is positioned at the right end of the support base and comprises a second pin hole fixedly arranged on the support base and a second pin shaft of a second baffle with the diameter larger than that of the second pin hole, and the second pin shaft is used for being matched with the second pin hole and a second connecting pin hole of the frame at the same time;
the third connecting portion is located the bottom of supporting base, including fixed locating third pinhole on the supporting base and top are equipped with the diameter and are greater than the third round pin axle of the third baffle of third pinhole, the third round pin axle be used for simultaneously with the third pinhole with the cooperation of the third connecting pin hole of frame.
2. The boom leg connecting module according to claim 1, wherein the second rotator is a cylindrical rotator sleeved outside the first rotator, the oil chamber is provided between an inner surface of a circumferential surface of the second rotator and an outer surface of a circumferential surface of the first rotator, and a connection port for communicating the oil chamber and the first telescopic cylinder is provided on a circumferential surface of the second rotator.
3. The work arm leg connection module according to claim 1, further comprising a valve block electric box provided on the second swivel part, the valve block electric box including an electric control hydraulic valve for controlling a hydraulic oil path of extension and retraction of the first extension and retraction cylinder, the support base being further provided with an electric connector for connection with a connector of an electric circuit of the working machine, the electric connector being electrically connected with the valve block electric box.
4. The work arm leg connection module of claim 3, further comprising a rotary electrical interface, a rotor of the rotary electrical interface being electrically connected to the valve block electrical box and fixedly connected to the second swivel, a stator of the rotary electrical interface being electrically connected to the electrical connector and fixedly connected to the support base.
5. The work arm leg connection module of claim 1, wherein the bottom of the third pin further comprises a first threaded portion, the third connection further comprising a bottom baffle having a diameter greater than the third connection pin bore, the bottom baffle comprising a second threaded portion for threaded engagement with the first threaded portion.
6. The boom leg attachment module of any one of claims 1 to 5, wherein the support base includes a support disc body and an inclined support frame fixedly attached to a bottom of the support disc body, the first and second connection portions are provided at left and right ends of the support disc body, respectively, and the third connection portion is provided on the inclined support frame.
7. The engineering machine is characterized by comprising a frame, a hydraulic pipeline and the working arm supporting leg connecting module according to any one of claims 1 to 6, wherein a first connecting pin hole, a second connecting pin hole and a third connecting pin hole are formed in the frame, the first pin shaft is matched with the first pin hole and the first connecting pin hole at the same time, the second pin shaft is matched with the second pin hole and the second connecting pin hole at the same time, the third pin shaft is matched with the third pin hole and the third connecting pin hole at the same time, and a joint of the hydraulic pipeline is connected with the hydraulic joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110987262.1A CN113651254B (en) | 2021-08-26 | 2021-08-26 | Working arm supporting leg connecting module and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113651254A (en) | 2021-11-16 |
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